Downhole tractor wheel



FIG. 1 is a perspective view of a pair of downhole tractor wheels of the present invention;

FIG. 2 is an enlarged front perspective view of a downhole tractor wheel of the present invention;

FIG. 3 is a left side elevation view of the downhole tractor wheel of FIG. 2, the right side elevation being a mirror image thereof:

FIG. 4 is a rear elevation view of the downhole tractor wheel of FIG. 2;

FIG. 5. Is a top plan view of the downhole tractor wheel of FIG. 2; and,

FIG. 6. Is a bottom plan view of the downhole tractor wheel of FIG. 2.

The broken lines showing a downhole tractor in FIG. 1 are directed to environment and are for illustrative purposes only and form no part of the claimed design. The broken lines shown in FIG. 1 of an extra downhole tractor wheel, and the broken lines shown in FIGS. 2, 4, and 5 are for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a downhole tractor wheel, as shown and described. 